Uni-Ball Signo Gel Grip Rollerball Pen UM-151S

A superb quality gel stick pen with a rubber grip, the Uni-Ball Signo Gel Grip has waterproof and fade-resistant pigment gel ink. 0.7mm ball writes a 0.4mm line. Available with Black Blue or Red ink.
Refills available here.  

Uni-Ball Signo Gel Grip Rollerball Pen UM-151S Pack of 12

A superb quality gel stick pen with a rubber grip, the Uni-Ball Signo Gel Grip has waterproof and fade-resistant pigment gel ink. 0.7mm ball writes a 0.4mm line. Available with Black Blue or Red ink.
Refills available here
Pack of 12. Also available individually, above.